Gemini 3.1 Flash TTS (preview) · impossibl

Gemini 3.1 Flash TTS (preview) is Google's text-to-speech model in the Gemini 3.1 family, generating natural, low-latency speech from text prompts. It adds expressive audio tags for precise narration control alongside steerable prompts and improved naturalness, controllability, and multilingual support over earlier Gemini TTS models.

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Ausgabe, $/1M $20.00

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Zuletzt geprüft 04.11.2026 12:00:14 UTC

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API

OpenAI-kompatible API: Die offiziellen OpenAI-SDKs funktionieren mit dieser Basis-URL. Ersetzen Sie YOUR_API_KEY durch Ihren Schlüssel vom Anbieter.

API-Basis-URL	`https://api.impossibl.com/v1`
Endpunkt	`https://api.impossibl.com/v1/audio/speech`
Modell-ID	`google/gemini-3.1-flash-tts-preview`

curl

curl https://api.impossibl.com/v1/audio/speech \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "google/gemini-3.1-flash-tts-preview", "input": "Hello!", "voice": "alloy"}'

Python

import requests

r = requests.post(
    "https://api.impossibl.com/v1/audio/speech",
    headers={"Authorization": "Bearer YOUR_API_KEY"},
    json={
      "model": "google/gemini-3.1-flash-tts-preview",
      "input": "Hello!",
      "voice": "alloy"
    },
)
print(r.json())

JavaScript

const r = await fetch("https://api.impossibl.com/v1/audio/speech", {
  method: "POST",
  headers: {Authorization: "Bearer YOUR_API_KEY", "Content-Type": "application/json"},
  body: JSON.stringify({
    "model": "google/gemini-3.1-flash-tts-preview",
    "input": "Hello!",
    "voice": "alloy"
  }),
});
console.log(await r.blob());

Anfrage (JSON)

{
  "model": "google/gemini-3.1-flash-tts-preview",
  "input": "Hello!",
  "voice": "alloy"
}

Antwort (JSON)

audio bytes (audio/mpeg)

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API-Dokumentation des Anbieters

Source: AI Rate Card, https://airatecard.com/de/c/offer%3Aimpossibl%7Cgoogle/gemini-3.1-flash-tts-preview, prices checked 2026-11-04; seller's page: https://impossibl.com/models/google/gemini-3.1-flash-tts-preview

Technische Details

ID: offer:impossibl|google/gemini-3.1-flash-tts-preview